/* Reset & Base Styles */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Premium Color Palette */
    --accent: #6366F1;
    --accent-light: #818CF8;
    --accent-dark: #4F46E5;
    --accent-glow: rgba(99, 102, 241, 0.4);

    /* Secondary Accent */
    --teal: #14B8A6;
    --teal-light: #2DD4BF;

    /* Text Colors */
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #64748B;
    --text-light: #94A3B8;

    /* Backgrounds */
    --bg-white: #FFFFFF;
    --bg-light: #F8FAFC;
    --bg-gray: #F1F5F9;
    --bg-dark: #0F172A;

    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.5);

    /* Borders & Shadows */
    --border: #E2E8F0;
    --border-input: #CBD5E1;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);

    /* States */
    --error: #EF4444;
    --error-light: #FEE2E2;
    --success: #10B981;
    --success-light: #D1FAE5;

    /* Misc */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Container */
.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ================================
   ANIMATED BACKGROUND
   ================================ */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    overflow: hidden;
    background: linear-gradient(135deg, #F8FAFC 0%, #EEF2FF 50%, #F0FDFA 100%);
}

.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.bg-orb-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.3), rgba(139, 92, 246, 0.2));
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.bg-orb-2 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.25), rgba(45, 212, 191, 0.15));
    bottom: -150px;
    left: -100px;
    animation-delay: -5s;
}

.bg-orb-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, rgba(244, 114, 182, 0.2), rgba(251, 146, 60, 0.15));
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    25% {
        transform: translate(30px, -30px) scale(1.05);
    }

    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }

    75% {
        transform: translate(-30px, -20px) scale(1.02);
    }
}

/* ================================
   HEADER
   ================================ */
.header {
    position: sticky;
    top: 0;
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-md), 0 0 20px var(--accent-glow);
    transition: var(--transition);
}

.logo-icon:hover {
    transform: scale(1.05);
}

.logo-text {
    font-weight: 700;
    font-size: 20px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.beta-badge {
    margin-left: 4px;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: linear-gradient(135deg, var(--accent), var(--teal));
    color: white;
    border-radius: 20px;
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4);
    }

    50% {
        box-shadow: 0 0 20px 5px rgba(99, 102, 241, 0.2);
    }
}

/* ================================
   HERO SECTION
   ================================ */
.hero {
    padding: 100px 24px 80px;
    text-align: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 32px;
    animation: fade-in-up 0.6s ease-out;
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.4;
    }
}

.hero-title {
    font-size: 40px;
    font-weight: 800;
    line-height: 1.15;
    color: var(--text-primary);
    margin-bottom: 24px;
    letter-spacing: -0.03em;
    animation: fade-in-up 0.6s ease-out 0.1s backwards;
}

.hero-title .accent {
    background: linear-gradient(135deg, var(--accent) 0%, var(--teal) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.7;
    animation: fade-in-up 0.6s ease-out 0.2s backwards;
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ================================
   BUTTONS
   ================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: white;
    box-shadow: var(--shadow-lg), 0 0 30px var(--accent-glow);
    animation: fade-in-up 0.6s ease-out 0.3s backwards;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), 0 0 40px var(--accent-glow);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:focus {
    outline: none;
    box-shadow: var(--shadow-xl), 0 0 0 4px rgba(99, 102, 241, 0.2);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-full {
    width: 100%;
}

.btn-icon {
    transition: transform 0.3s ease;
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

/* ================================
   FEATURES SECTION
   ================================ */
.features {
    padding: 80px 24px;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-label {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(20, 184, 166, 0.1));
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.section-title {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-muted);
    max-width: 500px;
    margin: 0 auto;
}

.feature-list {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    max-width: 700px;
    margin: 0 auto;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateX(8px);
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}

.feature-icon-wrapper {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(20, 184, 166, 0.1));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.check-icon {
    color: var(--accent);
}

.feature-item span {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
}

/* ================================
   AUDIENCE SECTION  
   ================================ */
.audience {
    padding: 80px 24px;
    background: linear-gradient(180deg, transparent 0%, rgba(99, 102, 241, 0.03) 50%, transparent 100%);
}

.audience-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.audience-card {
    position: relative;
    text-align: center;
    padding: 40px 32px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    overflow: hidden;
}

.audience-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--teal));
    opacity: 0;
    transition: var(--transition);
}

.audience-card:hover {
    transform: translateY(-6px);
    border-color: transparent;
    box-shadow: var(--shadow-xl);
}

.audience-card:hover::before {
    opacity: 1;
}

.audience-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(20, 184, 166, 0.1));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    transition: var(--transition);
}

.audience-card:hover .audience-icon {
    transform: scale(1.1);
    background: linear-gradient(135deg, var(--accent), var(--teal));
    color: white;
}

.audience-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.audience-card p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ================================
   BETA OFFER SECTION
   ================================ */
.beta-offer {
    padding: 80px 24px;
}

.offer-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    max-width: 700px;
    margin: 0 auto;
}

.offer-card {
    position: relative;
    text-align: center;
    padding: 28px 24px;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
    overflow: hidden;
}

.offer-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

.offer-number {
    font-size: 36px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 4px;
}

.offer-label {
    font-weight: 700;
    font-size: 15px;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.offer-sublabel {
    font-size: 13px;
    color: var(--text-muted);
}

/* ================================
   SIGNUP SECTION
   ================================ */
.signup {
    padding: 100px 24px;
    position: relative;
}

.form-wrapper {
    max-width: 480px;
    margin: 0 auto;
    padding: 48px 40px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    position: relative;
    overflow: hidden;
}

.form-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--accent), var(--teal), var(--accent-light));
    background-size: 200% 100%;
    animation: gradient-shift 3s ease-in-out infinite;
}

@keyframes gradient-shift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

.form-title {
    font-size: 28px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 8px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.form-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 36px;
    font-size: 15px;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.required {
    color: var(--error);
}

.form-input,
.form-select {
    width: 100%;
    padding: 16px 18px;
    font-size: 15px;
    font-family: inherit;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background-color: var(--bg-white);
    color: var(--text-primary);
    transition: var(--transition);
}

.form-input::placeholder {
    color: var(--text-light);
}

.form-input:hover,
.form-select:hover {
    border-color: var(--border-input);
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.form-input.error,
.form-select.error {
    border-color: var(--error);
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1);
}

.form-error {
    font-size: 13px;
    color: var(--error);
    margin-top: 6px;
}

.form-note {
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 12px;
}

.submit-error {
    padding: 14px 18px;
    background-color: var(--error-light);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius);
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    color: var(--error);
}

/* ================================
   SUCCESS MESSAGE
   ================================ */
.success-message {
    text-align: center;
    padding: 48px 32px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    animation: scale-in 0.4s ease-out;
}

@keyframes scale-in {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.success-icon-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(45, 212, 191, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.success-icon {
    color: var(--success);
    animation: check-pop 0.6s ease-out 0.2s backwards;
}

@keyframes check-pop {
    from {
        opacity: 0;
        transform: scale(0);
    }

    50% {
        transform: scale(1.2);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.success-message h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.success-message p {
    font-size: 15px;
    color: var(--text-secondary);
    max-width: 300px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ================================
   FOOTER
   ================================ */
.footer {
    padding: 40px 24px;
    border-top: 1px solid var(--border);
    text-align: center;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
}

.footer p {
    font-size: 14px;
    color: var(--text-muted);
}

.footer-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--accent-dark);
}

/* ================================
   RESPONSIVE - TABLET
   ================================ */
@media (min-width: 640px) {
    .hero {
        padding: 120px 24px 100px;
    }

    .hero-title {
        font-size: 52px;
    }

    .hero-subtitle {
        font-size: 20px;
    }

    .feature-list {
        grid-template-columns: 1fr;
    }

    .audience-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .offer-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .section-title {
        font-size: 36px;
    }
}

/* ================================
   RESPONSIVE - DESKTOP
   ================================ */
@media (min-width: 1024px) {
    .hero {
        padding: 140px 24px 120px;
    }

    .hero-title {
        font-size: 64px;
    }

    .hero-subtitle {
        font-size: 22px;
    }

    .section-title {
        font-size: 40px;
    }

    .feature-list {
        grid-template-columns: 1fr 1fr;
    }
}

/* ================================
   REDUCED MOTION
   ================================ */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}